Optical Measurement Device Light Splitting Module Uniformity
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Solution Overview
Problem
Traditional optical measurement devices suffer from low light usage rates and uneven light distribution to inspecting cameras, leading to inaccurate tristimulus value calculations, especially when dealing with weak light sources.
Innovation Solution
An optical measurement device that converts light into parallel light and uses a dual light splitting module to evenly distribute it among multiple cameras, equipped with color filters to calculate tristimulus values in the CIE color space, improving light usage and uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If an optical diffusion sheet is used to disperse light, then the light can be distributed to multiple cameras, but most of the dispersed light cannot be used and the usage rate is low
Solution Approach 1:
The patent introduces a beam splitter as an intermediary optical component between the light source and cameras. The beam splitter efficiently divides the incoming light into multiple beams that can be directed to different cameras, replacing the inefficient optical diffusion sheet approach and significantly improving light usage rate.
Solution Approach 2:
The patent segments the light path using multiple beam splitters arranged in sequence. Each beam splitter divides the light into separate beams that are directed to different cameras, enabling systematic distribution of light to multiple sensors while maintaining high efficiency and ensuring each camera receives sufficient light for accurate measurements.
2Loss of energy
If an optical fiber unit is used to focus and split light, then the usage rate of light is improved, but the light cannot be evenly distributed to all cameras
Solution Approach 1:
The patent uses multiple beam splitters arranged in a segmented configuration where each beam splitter handles a specific portion of the light distribution. This segmented approach ensures that light is evenly divided and distributed to each camera, avoiding the uneven distribution problem caused by optical fiber units while maintaining high light usage efficiency.
3Strength
If optical fibers are used with protective covers, then the structure is protected, but seamless arrangement between optical fibers is impossible and light distribution is blocked
Solution Approach 1:
The patent replaces optical fibers with beam splitters as the intermediary light distribution component. Beam splitters are solid optical elements without the structural limitations of optical fibers, allowing seamless arrangement and efficient light transmission without the need for protective covers that would block light paths.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances light usage efficiency and accuracy by ensuring uniform light distribution to all cameras, reducing light leakage and improving measuring sensitivity and precision.
Implementation Method 1
The first light splitter splits the first parallel light into a second parallel light and a third parallel light, and the second light splitter splits the second parallel light into a fourth parallel light and a fifth parallel light
Implementation Method 2
the plurality of parallel lights to be inspected filtered by the plurality of color filters are used to calculate tristimulus values in the CIE color space
Data Source
AI summary
The invention provides an optical measurement device for measuring light to be inspected. The optical measurement device comprises a light receiving module, a light splitting module, and a plurality of color filters. The light receiving module is used for converting the light to be inspected into a first parallel light. The light splitting module is used for splitting the first parallel light into a plurality of parallel lights to be inspected. Each color filter receives at least one of the plurality of parallel lights to be inspected. The plurality of parallel lights to be inspected filtered by the plurality of color filters are used to calculate tristimulus values in the CIE color space.